A device, application, and measurement method for measuring the perpendicularity of a component.

Abstract

This invention discloses a device, application, and measurement method for measuring the perpendicularity of a component. It solves the problem in existing technologies where the narrow space between the measured component and the fixed component, along with the transition section, affects the perpendicularity measurement. This invention provides advantages in ensuring measurement accuracy and efficiency. The specific solution is as follows: A device for measuring the perpendicularity of a component includes a support base, a right-angle measuring ruler, and a feeler gauge. The support base is gate-shaped, supported on both sides by the fixed components of the component being measured. The top surface of the support base is flat and parallel to the fixed components of the component being measured. The support base can span the bottom plate and the weld seam on the side of the bottom plate of the component being measured. The inner side of the support base contacts the vertical panel of the component being measured, or the inner side of the support base is spaced apart from the vertical panel. The top surface of the support base is lower than the top surface of the component being measured. The right-angle measuring ruler can be placed on the top surface of the support base, with its first right-angle side contacting the top surface of the support base.

Description

Technical Field

[0001] This invention relates to the field of vehicle body manufacturing technology, and in particular to a device, application, and measurement method for measuring the perpendicularity of components. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] A skirt is installed inside the bogie under the side beam of the vehicle to provide better protection for equipment removal and aerodynamic performance. The skirt is not a single piece, but multiple pieces, which are installed through skirt mounting brackets. The skirt mounting brackets are welded to the lower plane of the underframe side beam. During the welding process, the skirt mounting brackets undergo thermal deformation, affecting the perpendicularity of the skirt mounting bracket's vertical panel relative to the lower plane of the side beam. In addition, there are more than 30 skirt mounting brackets in total on the lower plane of the two side beams on each underframe. The 32 skirt mounting brackets of a single vehicle are installed in different processes. Most of the skirt mounting bracket beams are pre-assembled on the side beam in the side beam component process. The side beam pre-assembly is also carried out at two construction sites: some models are installed at the factory, and some models are installed in the factory. For skirt plate mounting seats that cannot be pre-assembled (which are anti-resistant to the welding fixtures of the side beams during pre-assembly), they are installed after the base frame is welded and before the base frame is handed over. Due to the involvement of multiple processes, the verticality measurement standards of the skirt plate mounting seats are not uniform, which ultimately causes the overall flatness of the skirt plate mounting seats on the side beams to exceed the tolerance, with values ​​between 2.5 and 4.5 mm.

[0004] Considering the vehicle's appearance, after all skirt panels are installed, the overall flatness requirement is ≤2mm / 3m on the outer surface of the skirt panel mounting base, and the perpendicularity of a single skirt panel mounting base to the lower plane of the side beam is ≤0.5mm. This means that during the vehicle manufacturing process, if the perpendicularity of the skirt panel mounting base to the lower plane of the vehicle chassis side beam exceeds the tolerance, problems may arise where the skirt panels cannot be installed, or the flatness of multiple skirt panels after installation cannot be effectively guaranteed. Therefore, it is necessary to test the perpendicularity of the skirt panel mounting base relative to the lower plane of the vehicle chassis side beam. The inventors discovered the following problems during the actual testing process:

[0005] refer to Figure 1 As shown, the lower plane of the side beam of the vehicle body frame is actually only about 5cm wide and has a flange structure. The bottom plate of the skirt mounting base also has a set width. After the skirt mounting base is welded to the three sides of the side beam, the distance between the bottom plate of the skirt mounting base and the flange of the side beam of the frame is small, only about 1-2mm. After welding, the lower plane of the side beam of the frame directly opposite the vertical surface of the skirt mounting base is almost completely covered by the weld, and the space between the skirt mounting base and the flange of the side beam cannot be utilized. The verticality of the vertical surface relative to the side beam is measured using a right-angle measuring ruler 5.

[0006] In actual construction operations, even if only the verticality of the skirt panel mounting base itself is measured, reference should be made. Figure 2 As shown, because a transition section is set between the vertical and horizontal surfaces of the skirt mounting base, and the transition section has rounded corners, it is impossible to directly measure with a right-angle measuring ruler. The right-angle measuring ruler cannot be placed at the rounded corner position at all.

[0007] refer to Figure 4 As shown, when using the notched corner measuring fixture 6 for verticality testing, the fixture needs to be calibrated because of the notch. Chinese patent application CN201621441666.1 discloses a welded tube sheet verticality measuring tool, which uses two straight plates on both sides and measures the verticality of the welded tube sheet by changing the angle of the two straight plates. However, it occupies a large area and is not suitable for skirt plate mounting seats with limited space. In addition, it is equivalent to a missing corner, and it needs to be calibrated to ensure accuracy. However, the calibration method is relatively complicated, and after multiple uses, it needs to be recalibrated to ensure the accuracy of the measurement results. It cannot quickly test multiple skirt plate mounting seats.

[0008] Another method is to create a template 7, for reference. Figure 5 As shown, similar to the shape of a right-angle measuring ruler, an arc transition is set at the right-angle position to avoid the transition section of the skirt plate mounting seat. An opening 7-1 is made at the edge of the side beam so that it can be stuck on the edge of the side beam. Then, a feeler gauge is used to measure the gap to confirm the verticality dimension. This solution is based on the edge of the side beam because its reference is not the lower plane of the side beam, but the edge of the side beam. However, the edge of the side beam has an arc, which has a large error.

[0009] In summary, this issue applies not only to skirt panel mounting brackets but also to other components in complex environments. Specifically, components requiring verticality measurements are supported by fixed components. Because these fixed components are narrow, and the measured component is welded to them, the weld seams on the periphery of the fixed component create unevenness. This unevenness prevents the placement of a measuring ruler, compromising the accuracy of verticality measurements. Furthermore, the measured component has a base plate and a vertical panel. The transition section between these two panels prevents the direct placement of a right-angle measuring ruler, necessitating multiple measurements with a missing corner device, impacting speed and efficiency. Without measurement, accuracy suffers. Additionally, out-of-tolerance components like skirt panel mounting brackets require replacement to meet dimensional requirements. Replacement necessitates cutting out existing skirt panel mounting brackets and re-materializing them, significantly disrupting production and compromising product quality. Summary of the Invention

[0010] In view of the shortcomings of the existing technology, the first objective of the present invention is to provide a device for measuring the perpendicularity of a component, which can measure the perpendicularity of the component being measured in a complex environment, not only ensuring the accuracy of the measurement, but also effectively improving the efficiency of the measurement.

[0011] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0012] A device for measuring the perpendicularity of a component includes a support base, a right-angle measuring ruler, and a feeler gauge. The support base is gate-shaped and supported on both sides by fixing members of the component being measured. The top surface of the support base is flat and parallel to the fixing members of the component being measured. The support base can span the bottom plate and the weld seam on the side of the bottom plate of the component being measured. The inner side of the support base contacts the vertical panel of the component being measured or is spaced apart from the vertical panel. The top surface of the support base is lower than the top surface of the component being measured. The right-angle measuring ruler can be placed on the top surface of the support base. The first right-angle side of the right-angle measuring ruler contacts the top surface of the support base. A feeler gauge is inserted between the second right-angle side and the vertical panel of the component being measured. The perpendicularity of the component being measured relative to the fixing members is obtained by measuring the distance between the second right-angle side and the vertical panel of the component being measured at different heights using the feeler gauge.

[0013] As described above, in a device for measuring the verticality of a component, considering that the top surface of the support base is the measuring surface of a right-angle measuring ruler, in order to ensure measurement accuracy, the top surface of the support base should not be set too high, but should be placed at a low position, but should not contact the transition section of the component being measured. The height of the support base is 2mm-5mm higher than the sum of the height of the base plate of the component being measured and the height of the transition section of the component being measured. The transition section of the component being measured is located between the base plate and the vertical plate of the component being measured.

[0014] As described above, a device for measuring the verticality of a component includes a support base comprising two columns, the bottom surface of which is a plane, the parallelism between the bottom surface of the column and the top surface of the support base being ≤0.1mm, a top plate being supported by columns on both sides, the top plate having the top surface, and the thickness of the top plate being greater than the height of the transition section between the upper and lower panels of the component being measured.

[0015] The length of the column is greater than or equal to 15mm and less than or equal to 25mm to ensure the contact area between the support base and the fixed component, ensure the stability of the support base structure, facilitate the operation of the staff, and prevent the support base from being too heavy, which would make it difficult for the staff to move it and effectively control the processing cost.

[0016] As described above, in a device for measuring the verticality of a component, an inclined section is provided on the inner side of the top plate near the vertical panel of the component being measured to avoid the transition section between the vertical panel and the bottom plate of the component being measured, so that the thickness of the top plate on the side near the vertical panel is less than the thickness on the other side, and the inclined section makes the width of the inner side of the top plate less than the width of the top surface.

[0017] As described above, in a device for measuring the verticality of a component, the width of the inclined section is greater than or equal to the width of the transition section, the height of the inclined section is greater than or equal to the height of the transition section, the width of the inclined section is 0-2mm wider than the width of the transition section, and the height of the inclined section is 0-0.5mm higher than the height of the transition section, so as to avoid contact between the support and the transition section and facilitate the control of the height of the support.

[0018] In the above-described device for measuring the verticality of a component, the thickness of the top plate is 1mm-3mm higher than the height of the thinner side of the inclined section.

[0019] As described above, the device for measuring the verticality of a component has the following limitations: because the fixing component of the component being measured is slender, the support base is also slender. To ensure the stability of the support base, the width of the support base must be less than the difference between the distance between the vertical panel of the component being measured and the flange of the fixing component and the transition section of the component being measured, so as to avoid the transition section of the component being measured.

[0020] As described above, in a component verticality measuring device, a groove is provided on the side of the support base away from the top surface. The height of the groove is greater than the base plate of the component being measured, and the length of the groove is greater than the sum of the length of the base plate and the width of the weld on the side of the base plate, so that the groove avoids the weld between the base plate and its side.

[0021] As described above, in order to avoid the inner side of the support base from touching the bottom plate of the component being measured, the height of the groove is 2mm-4mm higher than the bottom plate of the component being measured.

[0022] Considering the width of the weld, the length of the groove is 6cm-10cm longer than the length of the base plate.

[0023] Secondly, the present invention discloses the application of a component verticality measuring device, which is used for verticality detection during or after the installation of the vehicle body skirt mounting seat. Since the support seat and the fixed component, such as the lower surface of the underframe side beam, are parallel to each other, the verticality of the vehicle body skirt mounting seat relative to the lower surface of the underframe side beam can be measured by measuring the verticality between the vertical panel and the support seat.

[0024] Thirdly, this invention discloses a method for measuring the perpendicularity of a component, employing the aforementioned device for measuring the perpendicularity of a component, comprising the following:

[0025] The support base is set across the base plate of the component being tested, so that the fixing component of the component being tested supports the support base. The support base is set to avoid the weld seams around the base plate of the component being tested. The inner side of the support base contacts the vertical panel of the component being tested or the inner side of the support base is set at a distance from the vertical panel.

[0026] Place the right-angle measuring ruler on the top surface of the support base, with the first right-angle side of the right-angle measuring ruler in contact with the top surface of the support base and the second right-angle side of the right-angle measuring ruler close to the vertical panel of the component being measured.

[0027] Insert a feeler gauge between the second right-angled side and the vertical panel of the component being measured. At different heights of the vertical panel, use the feeler gauge to obtain the distance between the second right-angled side and the vertical panel at different heights, thereby obtaining the perpendicularity of the component being measured relative to the support or fixed component at different heights.

[0028] The beneficial effects of the present invention are as follows:

[0029] 1) In this invention, a support base is provided. The support base is a portal-shaped support base, which can effectively span the bottom plate of the component being measured and can be placed on the side of the vertical panel of the component being measured, either in close contact with the vertical panel or at a distance from it. The top surface of the support base is a plane and parallel to the fixed component, so that the top surface of the support base forms a measurement reference surface. The first right-angle side of the right-angle measuring ruler is placed on the top surface of the support base, and a feeler gauge can be inserted between the second right-angle side and the vertical panel of the component being measured. By obtaining the distance between the second right-angle side and the vertical panel of the component being measured at different heights using the feeler gauge, the perpendicularity of the component being measured relative to the support base, i.e., the fixed component, can be obtained. As shown above, the entire measuring device provides a relatively flat reference surface through the support base. Because the right-angle measuring ruler and feeler gauge are both standard parts, it is not necessary to test a few before measurement, which can ensure measurement accuracy; moreover, it can ensure measurement speed and efficiency.

[0030] 2) The height of the support base is limited in this invention so that the height of the support base is higher than the base plate and transition section of the component being tested, so as to avoid contact with the base plate and ensure the flatness of the top surface of the support base. However, it cannot be too high, because if the height of the support base is higher and closer to the top surface of the component being tested, the measurement results at different positions may be similar, which will affect the accuracy of the test results.

[0031] 3) In this invention, the support base supports the top plate through the column, and the height of the top plate is the height of the support base. Considering that the top plate needs to avoid the transition section of the component being measured, the thickness of the top plate is set to be greater than the height of the transition section. The length of the column and the width of the support base are limited to effectively ensure the stability of the slender support base. A sloping section is set on the inner side of the top plate near the vertical panel of the component being measured. By limiting the height and width of the sloping panel, the height of the top plate is further reduced, but the strength of the top plate is not affected, and the top plate can fully avoid the transition section of the component being measured.

[0032] 4) In this invention, the support base is provided with a groove. The length of the groove is limited so that the support base spans the bottom plate and the side weld of the component being tested. By limiting the height of the groove, the overall height of the support base is effectively controlled while ensuring the stability of the overall structure.

[0033] 5) The measuring device in this invention can be applied to detect the verticality of the skirt mounting bracket during or after installation. It can detect the verticality of all skirt mounting brackets of a single vehicle, which not only ensures the accuracy and precision of the measurement, but also ensures the efficiency of the measurement. After ensuring the verticality of a single skirt mounting bracket, the flatness of all skirts after installation through the skirt mounting bracket can be guaranteed.

[0034] 6) The measurement method provided in this invention can quickly measure the perpendicularity between the vertical panel of a single measured component and the top surface of the support. The measurement steps are simple, convenient for operators, and can ensure the accuracy of the measurement results. Since the support and the fixed component, such as the lower surface of the underframe side beam, are parallel to each other, the perpendicularity of the vehicle body skirt mounting seat relative to the lower surface of the underframe side beam can be quickly measured. Attached Figure Description

[0035] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0036] Figure 1 This is a schematic diagram of the measured component, such as a skirt plate mounting base, being installed on a fixed component, such as a side beam, in the existing technology.

[0037] Figure 2 This is a schematic diagram of the component being tested in the prior art.

[0038] Figure 3 This is a schematic diagram of the existing technology for measuring the perpendicularity of the component being measured using a right-angle measuring ruler.

[0039] Figure 4 This is a schematic diagram of the use of a corner-cutting measuring fixture to measure the perpendicularity of the component under test in the existing technology.

[0040] Figure 5 This is a schematic diagram of the existing technology of using a template with an opening to measure the perpendicularity of the component under test.

[0041] Figure 6 This is a front view of a component verticality measuring device according to one or more embodiments of the present invention.

[0042] Figure 7 This is a side view of a device for measuring the verticality of a component according to one or more embodiments of the present invention.

[0043] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0044] Among them: 1. Component to be measured, 1-1. Base plate, 1-2. Vertical panel, 1-3. Transition section, 2. Fixed component, 3. Support base, 3-1. Column, 3-2. Top plate, 3-3. Groove, 3-4. Inclined section, 4. Weld, 5. Right angle measuring ruler, 6. Corner missing measuring fixture, 7. Template, 7-1. Opening;

[0045] A. The bottom surface of the column, B. The length of the column, C. The length of the groove, D. The length of the support, E. The height of the column, F. The width of the support, G. The height of the groove, H. The height of the inclined section. Detailed Implementation

[0046] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] As described in the background section, existing technologies for detecting the perpendicularity of components in complex environments suffer from low accuracy and low efficiency. To address these technical problems, this invention proposes a device for measuring the perpendicularity of components.

[0049] Example 1

[0050] In a typical embodiment of the present invention, reference is made to Figure 6As shown, a device for measuring the perpendicularity of a component includes a support base 3, a right-angle measuring ruler 5, and a feeler gauge. The support base 3 is gate-shaped and supported on both sides by the fixing members 2 of the component being measured 1. The top surface of the support base 3 is flat and parallel to the fixing members 2 of the component being measured 1. The support base 3 can be set across the base plate 1-1 of the component being measured and the weld seam 4 on the side of the base plate 1-1. The inner side of the support base 3 is in contact with the vertical panel 1-2 of the component being measured or is set at a distance from the vertical panel 1-2. The top surface of the support base 3 is lower than the top surface of the component being measured. The right-angle measuring ruler 5 can be placed on the top surface of the support base 3. The first right-angle side of the right-angle measuring ruler 5 is in contact with the top surface of the support base 3. The feeler gauge is inserted between the second right-angle side and the vertical panel 1-2 of the component being measured. The perpendicularity of the component being measured 1 relative to the support base 3, i.e., the fixing member 2, is obtained by measuring the distance between the second right-angle side and the vertical panel 1-2 of the component being measured at different heights using the feeler gauge.

[0051] In this embodiment, the support base 3 includes two columns 3-1. The height of the columns 3-1 is the height of the support base. The transverse cross-section of the columns 3-1 can be rectangular. The bottom surface of the columns 3-1 is flat. The parallelism between the bottom surface A of the columns and the top surface of the support base 3 is ≤0.1mm. Smaller flatness requirements can further reduce errors. The top plate 3-2 is supported by the columns 3-1 on both sides. The top plate 3-2 is a flat plate with a top surface. The thickness of the top plate 3-2 is greater than the height of the transition section 1-3 between the vertical panel 1-2 and the bottom plate 1-1 of the component being measured. During processing, the columns 3-1 and the top plate 3-2 are processed into an integral structure using aluminum plates. Of course, in some examples, for ease of processing, the columns 3-1 and the top plate 3-2 can also be made into separate structures. However, the separate structures need to be fixed together by fasteners such as bolts during use. The top plate and the columns are connected from the side of the columns.

[0052] Considering that the top surface of the support base 3 is the measuring surface of the right-angle measuring ruler 5, in order to ensure measurement accuracy, the top surface of the support base 3 should not be set too high, but should be placed at a lower position, but should not contact the transition section 1-3 of the component being measured. The height E of the support base is 2mm-5mm higher than the sum of the height of the base plate 1-1 of the component being measured and the height of the transition section 1-3 of the component being measured. The transition section 1-3 of the component being measured is located between the base plate 1-1 and the vertical panel 1-2 of the component being measured.

[0053] It is easy to understand that the dimensions of the two uprights 3-1 are the same, and the length B of the upright is consistent with the length of the support 3. The length B of the upright 3-1 is greater than or equal to 15mm and less than or equal to 25mm, and can be 20mm, to ensure the contact area between the support 3 and the fixed component 2, to ensure the stability of the support 3 structure, to facilitate the operation of the staff, and to avoid the support 3 being too heavy, which would be not conducive to the staff's handling of it, and to effectively control the processing cost.

[0054] Considering that the top surface of the support base 3 is the measuring surface of the right-angle measuring ruler 5, in order to ensure measurement accuracy, the top surface of the support base 3 should not be set too high. It should be placed at a low position, but it should not contact the transition section 1-3 of the component being measured. The height of the support base 3 is also the height of the top plate 3-2, which is 2mm-5mm higher than the sum of the height of the bottom plate 1-1 of the component being measured and the height of the transition section 1-3 of the component being measured. The transition section 1-3 of the component being measured is located between the bottom plate 1-1 and the vertical plate 1-2 of the component being measured.

[0055] It should be noted that, in order to minimize the height of the top plate 3-2, refer to Figure 6 and Figure 7 As shown, a sloping section 3-4 is provided on the inner side of the top plate 3-2 near the vertical panel 1-2 of the component being measured to avoid the transition section 1-3 between the vertical panel 1-2 and the bottom plate 1-1 of the component being measured. This makes the thickness of the top plate 3-2 on the side near the vertical panel 1-2 less than the thickness on the other side. The sloping section 3-4 makes the width of the inner side of the top plate 3-2 less than the width of the top surface. In this way, the sloping section 3-4 can avoid the transition section 1-3 on the inner side of the top plate 3-2, so that the height of the inner side of the top plate 3-2 does not have to be too high, and it does not have to be above the transition section 1-3. It also controls the detection device to not be too high, providing a larger measurement space for the right-angle measuring ruler 5 and the feeler gauge. This not only avoids material waste, but also helps to ensure the accuracy of the detection results.

[0056] It is easy to understand that the width of the inclined section 3-4 is greater than or equal to the width of the transition section 1-3, the height of the inclined section 3-4 is greater than or equal to the height of the transition section 1-3, the width of the inclined section 3-4 is 0-2mm wider than the width of the transition section 1-3, and the height H of the inclined section is 0-0.5mm higher than the height of the transition section 1-3, so as to avoid contact between the support base 3 and the transition section 1-3, which is beneficial to the control of the height of the support base 3; in some examples, the width of the inclined section 3-4 is the same as the height H of the inclined section, so the inclination angle of the inclined section 1-3 relative to the top surface is 45°, and the height H of the inclined section is the same as the radius of the transition section.

[0057] In addition, because the fixing member 2 of the tested component 1 is slender, the support base 3 is also slender. In order to ensure the stability of the support base 3, the width F of the support base must be ensured. The width F of the support base 3 is less than the difference between the distance between the vertical panel 1-2 of the tested component and the flange of the fixing member 2 and the transition section 1-3 of the tested component, so as to avoid the transition section 1-3 of the tested component while ensuring the setting strength of the support base 3.

[0058] It is easy to understand that a groove 3-3 is provided on the side of the support 3 away from the top surface. The height G of the groove is higher than the base plate 1-1 of the component being tested. The length of the groove 3-3 is greater than the sum of the length of the base plate 1-1 and the width of the side weld 4 of the base plate 1-1, so that the groove 3-3 avoids the base plate 1-1 and the side weld 4.

[0059] To prevent the inner side of the support 3 from fitting against the base plate 1-1 of the component being measured, the height G of the groove is 2mm-4mm higher than the base plate 1-1 of the component being measured, which facilitates processing and manufacturing.

[0060] Considering the width of weld 4, the length C of the groove is 6cm-10cm longer than the length of the base plate 1-1, specifically 5cm. The distance between the groove 3-3 and one side of the base plate 1-1 is 2.5cm, which effectively avoids the influence area of ​​weld 4 without making the support 3 too long. By limiting the length of the groove 3-3, the length of the support is limited, which is also the length of the top plate. The length D of the support is limited, which is the sum of the length of the groove 3-3 and the lengths of the two side columns.

[0061] In this case, the thickness of the top plate 3-2 is 1mm-3mm higher than the height of the thinner side of the inclined section 3-4. In some examples, the overall thickness of the top plate can be 7mm, the height of the groove is also 7mm, and when the radius of the transition section is 5mm, the height of the inclined section can be 5mm, and the width of the inclined section is also 5mm.

[0062] It should be noted that the right-angle measuring ruler is an existing right-angle measuring ruler, and the feeler gauge is an existing pair of feeler gauges (such as thickness gauges), both of which are standard parts.

[0063] In addition, it is easy to understand that the application of a component verticality measuring device is used for verticality detection during or after the installation of the vehicle body skirt mounting bracket.

[0064] Using the aforementioned measuring device, the verticality of the skirt board mounting base can be measured. Measuring the verticality of the skirt board mounting base is simple and convenient, and can be consistent across different processes. The support base in the measuring device does not participate in the measurement, and the right-angle measuring ruler 5 can easily measure the verticality of the skirt board mounting base to the lower plane of the side beam. The length of the measuring device can be adjusted according to the different sizes of the skirt board mounting bases, thus overcoming the problem of not being able to measure the verticality of the skirt board mounting base to the lower plane of the side beam. This measuring device is used for installation in different processes, ensuring the verticality of the skirt board mounting base at each process. When the final underframe is delivered, the verticality of each of the more than 30 skirt board mounting bases meets the requirements, and the overall flatness also meets the requirements. Therefore, there is no need to adjust or even replace the skirt board mounting bases, saving 2 hours / unit of skirt board mounting base body adjustment time and 1 hour / unit of skirt board adjustment time in the final assembly plant.

[0065] Example 2

[0066] The difference between this embodiment and Embodiment 1 is that:

[0067] The inner side of the top plate, near the vertical panel of the component being measured, does not have a sloping section. This requires raising the height of the support base groove to avoid interference between the top plate and the transition section of the frame being measured.

[0068] Example 3

[0069] This embodiment discloses a method for measuring the perpendicularity of a component, using a component perpendicularity measuring device as described in Embodiment 1 or Embodiment 2, including the following:

[0070] The support base 3 is set across the base plate 1-1 of the component being tested, so that the fixing component 2 of the component being tested supports the support base 3. The support base 3 is set to avoid the weld 4 on the periphery of the base plate 1-1 of the component being tested. The inner side of the support base 3 contacts the vertical panel 1-2 of the component being tested or the inner side of the support base 3 is set at a distance from the vertical panel 1-2.

[0071] Place the right-angle measuring ruler 5 on the top surface of the support base 3, with the first right-angle side of the right-angle measuring ruler 5 in contact with the top surface of the support base 3, and the second right-angle side of the right-angle measuring ruler 5 close to the vertical panel 1-2 of the component being measured.

[0072] Insert a feeler gauge between the second right-angled side and the vertical panel 1-2 of the component being measured. At different heights of the vertical panel 1-2, use the feeler gauge to obtain the distance between the second right-angled side and the vertical panel 1-2 at different heights (at least three locations: the bottom side, the middle side, and the top side of the vertical panel). This will give you the perpendicularity of the component being measured at different heights relative to the support or fixed component. Compare this perpendicularity with the required perpendicularity. If the perpendicularity exceeds the required perpendicularity, the component being measured needs to be adjusted.

[0073] Thus, for situations where multiple components need to be measured, this measuring device is used to assist in installation and measurement at each installation process. Before installation, the measuring device is used to check the verticality. After welding the skirt plate mounting base, the right-angle measuring ruler and feeler gauge in the measuring device are used to measure the verticality, thereby achieving uniformity in measurement standards and installation methods. The overall flatness of the 32 skirt plates on the base frame side beam after installation will no longer exceed the tolerance, reducing rework time and effectively improving production efficiency.

[0074] When using it, the right-angle ruler can be placed in multiple positions, such as the middle or side of the vertical panel of the component being measured, to accurately determine the perpendicularity of the vertical panel of the component being measured relative to the fixed component from multiple positions.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for measuring the verticality of a component, used for detecting the verticality of a vehicle body skirt mounting bracket during or after installation, characterized in that... The device includes a support base, a right-angle measuring ruler, and a feeler gauge. The support base is gate-shaped and supported on both sides by the fixing components of the component being measured. The top surface of the support base is flat and parallel to the fixing components of the component being measured. The support base can span the bottom plate and the weld seam on the side of the bottom plate of the component being measured. The inner side of the support base contacts the vertical panel of the component being measured or is spaced apart from the vertical panel. The top surface of the support base is lower than the top surface of the component being measured. The right-angle measuring ruler can be placed on the top surface of the support base. The first right-angle side of the right-angle measuring ruler contacts the top surface of the support base. A feeler gauge is inserted between the second right-angle side and the vertical panel of the component being measured. The perpendicularity of the component being measured relative to the fixing components is obtained by measuring the distance between the second right-angle side and the vertical panel of the component being measured at different heights using the feeler gauge. The support base includes two columns with flat bottom surfaces. The top plate is supported by the columns on both sides and has a top surface. The thickness of the top plate is greater than the height of the transition section between the upper panel and the bottom plate of the component under test. An inclined section is provided on the inner side of the top plate near the upper panel of the component under test to avoid the transition section between the upper panel and the bottom plate of the component under test, so that the thickness of the top plate on the side near the upper panel is less than the thickness on the other side. The inclined section makes the width of the inner side of the top plate less than the width of the top surface.

2. The device for measuring the perpendicularity of a component according to claim 1, characterized in that, The height of the support base is 2mm-5mm higher than the sum of the height of the base plate of the component under test and the height of the transition section of the component under test. The transition section is connected between the vertical panel and the base plate of the component under test.

3. The device for measuring the perpendicularity of a component according to claim 1, characterized in that, The parallelism between the bottom surface of the column and the top surface of the support base is ≤0.1mm; The length of the column is greater than or equal to 15mm and less than or equal to 25mm.

4. The device for measuring the perpendicularity of a component according to claim 1, characterized in that, The width of the inclined section is greater than or equal to the width of the transition section, the height of the inclined section is greater than or equal to the height of the transition section, the width of the inclined section is 0-2mm wider than the width of the transition section, and the height of the inclined section is 0-0.5mm higher than the height of the transition section.

5. The device for measuring the perpendicularity of a component according to claim 1, characterized in that, The thickness of the top plate is 1mm-3mm higher than the height of the thinner side of the inclined section.

6. The device for measuring the perpendicularity of a component according to claim 1, characterized in that, The width of the support base is less than the difference between the distance between the vertical panel of the component under test and the flange of the fixed component and the transition section of the component under test.

7. The device for measuring the perpendicularity of a component according to claim 1, characterized in that, The support base has a groove on the side away from the top surface. The height of the groove is greater than that of the base plate of the component being tested, and the length of the groove is greater than the sum of the length of the base plate and the width of the weld on the side of the base plate.

8. The device for measuring the perpendicularity of a component according to claim 7, characterized in that, The height of the groove is 2mm-4mm higher than the bottom plate of the component being measured; The length of the groove is 6cm-10cm longer than the length of the base plate.

9. A method for measuring the perpendicularity of a component, characterized in that, The device for measuring the perpendicularity of a component according to any one of claims 1-8 includes the following: The support base is set across the base plate of the component being tested, so that the fixing component of the component being tested supports the support base. The support base is set to avoid the weld seams around the base plate of the component being tested. The inner side of the support base contacts the vertical panel of the component being tested or the inner side of the support base is set at a distance from the vertical panel. Place the right-angle measuring ruler on the top surface of the support base, with the first right-angle side of the right-angle measuring ruler in contact with the top surface of the support base and the second right-angle side of the right-angle measuring ruler close to the vertical panel of the component being measured. Insert a feeler gauge between the second right-angled side and the vertical panel of the component being measured. At different heights of the vertical panel, use the feeler gauge to obtain the distance between the second right-angled side and the vertical panel at different heights, thereby obtaining the perpendicularity of the component being measured relative to the support or fixed component at different heights.

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